HomeCentric 121.66042 Disc Brake Rotor - Front
Part #: 121.66042

Centric 121.66042 Disc Brake Rotor - Front

C-TEK Standard Disc Brake Rotors, Front
127 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
C-TEK Standard Disc Brake Rotors, Front
Fitment: Chevrolet, GMC, Hummer, and Cadillac, Express 2500, Express 3500, Savana 2500, Savana 3500, Express Pasajeros, Express Cargo, Silverado 2500, Suburban 2500, Yukon XL 2500, H2, Silverado 1500 HD Classic, Sierra 1500 HD Classic, Avalanche 2500, Silverado 1500 HD, Sierra 1500 HD, DeVille, Silverado 1500, Sierra 2500 HD, Sierra 1500, and Sierra 2500
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Reliable Disc Brake Rotor for GM Trucks and SUVs

The Centric C-TEK Standard Disc Brake Rotor 121.66042 is engineered for dependable braking performance on select Cadillac, Chevrolet, GMC, and Hummer vehicles. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking for heavy-duty applications.

  • Vented disc brake rotor with straight vane design for effective cooling
  • Nominal thickness of 1.496 inches (38.000 mm) and discard thickness of 1.437 inches (36.500 mm)
  • Overall height of 3.512 inches (89.200 mm) and outside diameter of 12.787 inches (324.800 mm)
  • Floating disc mounting with 8 lug holes, 0.650 inch (16.500 mm) diameter each
  • Compatible with multiple GM models including Silverado 1500 HD, Sierra 2500 HD, and Cadillac DeVille

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM standards, providing reliable braking performance for a range of GM trucks and SUVs. This product line focuses on delivering rotors with precise dimensions and vented designs to maintain optimal temperature control during braking, which is critical for vehicles like the Chevrolet Silverado 1500 HD and GMC Sierra 2500 HD that often handle heavy loads.

Product Details and Specifications

This Centric rotor features a smooth surface type and a vented design with straight vanes to enhance airflow and reduce heat buildup. The rotor’s floating disc mounting and two miscellaneous holes contribute to proper fitment and performance. With a center hole diameter of 4.650 inches (118.100 mm) and a mounting bolt hole circle diameter of 6.500 inches (165.100 mm), it is engineered for precise installation. Weighing approximately 25.72 lbs (11.69 kgs), this rotor balances durability and weight for effective braking response.

Compatible Vehicles and Applications

  • Cadillac DeVille
  • Chevrolet Avalanche 2500, Silverado 1500 HD, Silverado 2500, Suburban 2500
  • GMC Sierra 1500 HD, Sierra 2500 HD, Yukon XL 2500
  • Hummer H2
  • Chevrolet Express 2500, Express 3500, Savana 2500, Savana 3500

Common Issues Addressed by This Rotor

  • Brake rotor warping due to heat buildup
  • Reduced braking efficiency from worn or thin rotors
  • Vibration or pulsation during braking
  • Uneven brake pad wear caused by rotor surface irregularities
  • Noise or squealing related to rotor surface condition

Installation Notes and Tips

Ensure the rotor discard thickness of 1.437 inches (36.500 mm) is not exceeded before installation. Clean the rotor surface to remove any protective coatings or debris. Verify compatibility with your vehicle’s lug pattern and mounting specifications, including the 8 lug holes and 6.500 inch bolt circle diameter. Proper torque specifications should be followed to avoid rotor distortion. This rotor does not include bearings or an ABS tone ring, so verify if your vehicle requires these components separately.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.

BrandCentric
Part Number121.66042
PositionC-TEK Standard Disc Brake Rotors, Front
ABS Tone Ring IncludedNo
Bearings IncludedNo
Center Hole Diameter4.650
Center Hole Diameter118.100
Disc Mounting [cntrc]Floating
Discard Thickness1.437
Discard Thickness36.500
Misc Holes [cntrc]2
Mounting Bolt Hole Circle Diameter6.500
Mounting Bolt Hole Circle Diameter165.100
Nominal Thickness1.496
Nominal Thickness38.000
Outside Diameter12.787
Outside Diameter324.800
Overall Height3.512
Overall Height89.200
Solid Or Vented Type RotorVented
Stud/Lug Hole Diameter0.650
Stud/Lug Hole Diameter16.500
Stud/Lug Hole Quantity8
Surface TypeSmooth
Vane Style [cntrc]Straight
Weight [cntrc] kgs11.690
Weight [cntrc] lbs25.720

This part fits 127 vehicles. Search below:

YearMakeModelBody TypeDrive TypePositionNotes
2022ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2022ChevroletExpress 3500FrontJH6; C-TEK Standard Disc Brake Rotors
2022GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2022GMCSavana 3500FrontJH6; C-TEK Standard Disc Brake Rotors
2021ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2021GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2020ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2020GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2019ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2019GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2018ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2018GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2017ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2017GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2016ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2016GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2015ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2015GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2014ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2014GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2013ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2013ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2013ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2013GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2013GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2012ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2012ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2012ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2012GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2012GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2011ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2011ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2011ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2011GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2011GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2010ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2010ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2010ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2010GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2010GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2009ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2009ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2009ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2009GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2009GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2009HummerH2FrontC-TEK Standard Disc Brake Rotors
2008ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2008ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2008ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2008GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2008GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2008HummerH2FrontC-TEK Standard Disc Brake Rotors
2007ChevroletExpress 2500FrontC-TEK Standard Disc Brake Rotors
2007ChevroletSilverado 1500 HD ClassicFrontC-TEK Standard Disc Brake Rotors
2007ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2007ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2007GMCSavana 2500FrontC-TEK Standard Disc Brake Rotors
2007GMCSierra 1500 HD ClassicFrontClassic GMT 800; Heavy Duty; C-TEK Standard Disc Brake Rotors
2007GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2007HummerH2FrontC-TEK Standard Disc Brake Rotors
2006ChevroletAvalanche 2500FrontC-TEK Standard Disc Brake Rotors
2006ChevroletExpress 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2006ChevroletSilverado 1500 HDFrontC-TEK Standard Disc Brake Rotors
2006ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2006ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2006GMCSavana 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2006GMCSierra 1500 HDFront8 Lug; Heavy Duty; C-TEK Standard Disc Brake Rotors
2006GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2006HummerH2FrontC-TEK Standard Disc Brake Rotors
2005CadillacDeVilleSedanFrontHeavy Duty; C-TEK Standard Disc Brake Rotors
2005CadillacDeVilleLimousineFrontC-TEK Standard Disc Brake Rotors
2005ChevroletAvalanche 2500FrontC-TEK Standard Disc Brake Rotors
2005ChevroletExpress 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2005ChevroletSilverado 1500Crew Cab Pickup4WDFrontC-TEK Standard Disc Brake Rotors
2005ChevroletSilverado 1500 HDFrontC-TEK Standard Disc Brake Rotors
2005ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2005ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2005GMCSavana 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2005GMCSierra 1500 HDRWDFrontHeavy Duty; C-TEK Standard Disc Brake Rotors
2005GMCSierra 1500 HD4WDFront8 Lug; Heavy Duty; C-TEK Standard Disc Brake Rotors
2005GMCSierra 2500 HDFrontexc HD Pkg; C-TEK Standard Disc Brake Rotors
2005GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2005HummerH2FrontC-TEK Standard Disc Brake Rotors
2004CadillacDeVilleLimousineFrontC-TEK Standard Disc Brake Rotors
2004ChevroletAvalanche 2500Frontexc 2" Body Raise; Light Duty; C-TEK Standard Disc Brake Rotors
2004ChevroletExpress 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2004ChevroletSilverado 1500Front8 Lug Wheels; Heavy Duty; C-TEK Standard Disc Brake Rotors
2004ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2004ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2004GMCSavana 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2004GMCSierra 1500Front8 Lug Wheels; Heavy Duty; C-TEK Standard Disc Brake Rotors
2004GMCSierra 2500FrontC-TEK Standard Disc Brake Rotors
2004GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2004HummerH2FrontC-TEK Standard Disc Brake Rotors
2003CadillacDeVilleLimousineFrontC-TEK Standard Disc Brake Rotors
2003ChevroletAvalanche 2500Frontexc 2" Body Raise; Light Duty; C-TEK Standard Disc Brake Rotors
2003ChevroletExpress 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2003ChevroletSilverado 1500 HDFrontC-TEK Standard Disc Brake Rotors
2003ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2003ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2003GMCSavana 2500Front8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors
2003GMCSierra 1500 HDFrontC-TEK Standard Disc Brake Rotors
2003GMCSierra 2500FrontC-TEK Standard Disc Brake Rotors
2003GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2003HummerH2FrontC-TEK Standard Disc Brake Rotors
2002CadillacDeVilleLimousineFrontC-TEK Standard Disc Brake Rotors
2002ChevroletAvalanche 2500Frontexc 2" Body Raise; Light Duty; C-TEK Standard Disc Brake Rotors
2002ChevroletSilverado 1500 HDFrontC-TEK Standard Disc Brake Rotors
2002ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2002ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2002GMCSierra 1500 HDFrontC-TEK Standard Disc Brake Rotors
2002GMCSierra 2500FrontC-TEK Standard Disc Brake Rotors
2002GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2001CadillacDeVilleLimousineFrontC-TEK Standard Disc Brake Rotors
2001ChevroletSilverado 1500 HD4WDFrontC-TEK Standard Disc Brake Rotors
2001ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2001ChevroletSuburban 2500FrontC-TEK Standard Disc Brake Rotors
2001GMCSierra 1500 HD4WDFrontC-TEK Standard Disc Brake Rotors
2001GMCSierra 2500FrontC-TEK Standard Disc Brake Rotors
2001GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
2000CadillacDeVilleLimousineFrontC-TEK Standard Disc Brake Rotors
2000ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
2000ChevroletSuburban 2500RWDFrontC-TEK Standard Disc Brake Rotors
2000GMCSierra 2500FrontC-TEK Standard Disc Brake Rotors
2000GMCYukon XL 2500FrontC-TEK Standard Disc Brake Rotors
1999ChevroletSilverado 2500FrontC-TEK Standard Disc Brake Rotors
1999GMCSierra 2500FrontC-TEK Standard Disc Brake Rotors

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.